Tire tool



- -1,691,855 B. POLISENA ETAL TIRE TOOL Nov. 13, 1928.

Filed Maroh 30, 1928 2 Sheets-Sheet 1 INVENToR l 200 Z z S672 a,

'ATTORNE Nov. 13, 1928. 1,691,855

B. PoLlsENA ET Al. f

TIRE TOOL Filed March 3o. 1928 2 sheets-sheet 2 INVENTQRJ l5? 200 Z zde n a BY'H. Cam/@6056i QMVI ATTORNEY.;

atented i iov, 13, f

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iininianno roms'nna Ann iiriinv csivirnDEL, or NEwYonK, N. Y.

TR-E TOOL.

l"l" his invention relates to certain new and useful iiiipiovemv" 'i tire tools and has particular reference the type of tool employed for collapsing and expanding a meil taliic split riin for' the purpose oit removing and mounting' a tire shoe thereon.

rlie primary object ot the invention is to provide a tire tool in which a plurality of radial arms having rim engaging jaws l" at their outer endsv with means associated with the inner endsof the arms and being manually operable tor collapsing and expanding a split rim.

TWith the above and other objects in view that will become apparent as the nature of the invention is better understood, the saine consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying draw- In the accompanying drawings, wherein like reference characters indicate corresponding parts throughout the several views,

Figure 1 is a side elevational view ot a tire tool constructed in accordance with the present invention, the same being illustrated as engaged with the split rim that carries a tire;

Figure 2 'is a similar side elevational view showing the tool operated for contracting` or collapsing the split rim;

Figure 3 is a vertical cross-sectional viewv Figure 9 is a vertical cross-sectional view Vof the tire and tool shown in Figures 7 and Figure 10 is a detail sectional view taken on line 10-10 of Figure 9; and

Figure 11 is a detail sectional view, partly in elevation of a part of the rim and tool,

showing the construction of one of the rim engaging armheads.

' In both forms of the invention disclosed ings and claimed. Y

Application filed March 30, 1928. d Serial No. 65,940,v

herein, the main idea is to provide a tire or rim tool'having three radial arms with rim engaging head or jaw at ltheouter end of each arm and with means associated with the inner ends of the arms to cause movement thereof-for the collapsing or contracl tion andy expansion of. a split rim.v 'In the preferred form of theinventi'on as shown. in Figures-1 to 6, the tool is associated with a split rim 1 that carries the ltire shoe 2 and said toolk comprises three radial ariiis,'-twoi4 or" which are designatedvby the reference numeral 3, while the third arm is desigf nated by the referencenumeral 4; rllhe Arim engagingheador jaw is carried by the outer a end of the arms 3 and 4 and being more clearly' shown in Figure 11, the same comprises a. cross-head 5 having a rigid rim engaging flange 6 on one end and aA pivoted rim engaging flange 7 upon its other end,

for detachable engagement with the` side "y flanges of the wheel rim 1.

The loperating means 'for the arms-Sand 4 comprises a cylindrical'block 8 that has a reduced annular neck 9 for the rotatable reception of the collar 10, the collar being retained in position onthe reduced neck 9 by the bottom disk 11 that has an inter-locking i connection 12st the lower end of the block 8 and'further secured thereto by the cross pins 18. The block 8 and disk 11 are pro-v vided with alined internally threaded bores 8 and 11FL respectively through which the threaded portion 4a oit the radial arm 4 eX- tends, The inner ends of the arms 3 are pivotally connected as at 14 to the collar 10 to permit equidistant'engagement between the rim engaging jaws and the rim.

As shown in Figures 1, 2 and 4, the upper face of the block 8 is shouldered to form a polygonal nut 15 that surrounds the openingVSa to receive the similarly apertured end ot the crank handle 16.

When the tool is engaged with lsaid rim Vl0() f as shown in Figure 1, the crank handle 16 Y is engaged with the block 8 and upon rov tating the crank handle, the block 8` and bottom disk 11 are rotated upon the threaded portion 4a of the arm 4 for llowering the blocks or moving the same toward the outer end of the arm, rl`he block 8 is rotatable in the collar 10 that is held against rotation by having the arms there'of engaged with the split rim 1, and this movement of the block and ,collar causes collapsing of the split rim and separation of the split end thereof.

l The split ends ofthe rim are expanded into f at different elevations in the casing 19.

-engageable, the ribbed cylinder being retained .in the casing 18 by the cap plate 21 that is secured asat 22 to lthe upper end of the *Y casing and 4havinga cent-ral 4opening therein for the passage of thevgkey end 23 of rthe `cylinder and for engagement With the shouldersQt on thek upper end of thecylinder. The crank handle 162L is en'gageable withthe upper key end 23 of the ribbed cylinder 24 and when the latter is rotated in the desired direction, the radial arms 3a are Y longitudinally shifted.

Vhile there are herein shown and described the preferred embodiments of the present invention, it is nevertheless to be understood that minor changes mayV be made therein Without departing from the spirit and scope of the invention .as claimed.

' Vhat I claim as new is Y 1. In a tire tool, a plurality of radial arms having rim engaging heads at their outer ends, one of said arms beingthreaded, a block threaded thereon, Vhaving a reduced annular neck, a collar rotatable onthe reduced neck, a bottom plate threaded on the arm and having a key-shaped recess in its upper face, a key-shaped extension on the lower end of the block received in the recess cross-pins for locking the bottom plate to t-he block and retaining the collar in po-k sition, a pivotal connection between the col lar and other arm, andv means for rotating the block and plate.

2. ln a tire tool, a pluralit7 of radial arms having rim engaging heads at their outer ends, one of said arms being threaded, a

block threaded thereon, having a reduced annular neck, a collar rotatable on the reduced neck,a bottom plate threaded on the arm andV having a lreyfshaped recess in its upper face, a lreyfshapedextension on the lowervend of the block received in the recess cross-pins for locking the bottom plate to the' vblock and retaining the collar in position, a pivotal connection between'the collar and other arm, a nut extension on the'fuppe'r face ot the'bloclr surroundingthe arm bore and a crank engageable With the nut. Y

In testimony whereof We aix `our signatures.

. BERNARDO POLISENA.- HENRYVCAMPEDEL; 

